Wiseco PK1071 Top End Kit - Standard Bore 95.00mm, 12:1 Compression

Bore: 95.00mm
Compression: 12:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 439cc.
Bore - Standard: 95.00mm.
Bore - Actual: 95.00mm.
Bore - Oversize: STD.
Stroke: 62.00mm.
Cylinders: 1.
Compression Ratio - Actual: 12:1.
ITEM CONTENTS.
3741XS - 95.00 mm Ring Set.
4865M09500 - Yam YFZ450 04-13/450R 09-16 11.4:1 CR.
CW20 - ROUND WIRE PIN LOCKS 20MM (PAIR).
S641 - PistonPin 20mm x 1.986in. NonChromed SW.
W6129 - TopEndGsktKit Yamaha YZ450F 03-05 95mm.

Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set.

Vehicle Fitment:

2004-2005 Yamaha YFZ450